Trolley-harp.



PATENTBD OCT. 25, 1904.

I No. 773,280,

T. EGAN.

TROLLEY HARP.

APPLIOATIOR FILED APR. 14, 1904.

N0 MODEL.

Win 2 UNTTED STATES Patented October 25, 1904.

PATENT Trice.

THOMAS EGAN, OF MUSOATINE, IOIVA, ASSIGNOR OF ONE-HALF TO J. G. DERMEDY,OF MUSOATINE, IOWA.

TROLLEY-HARP.

SPECIFICATION forming part of l etters Patent No. 773,280, dated October25, 1904.

Application filed April 14, 1904. Serial No. 203,177. (No model.)

'10 all whom, it may concern.-

Be it known that I, THOMAS EGAN, a citizen of the United States-residingat Muscatine, in the county of Muscatine and State of Iowa, haveinvented a new and useful Trolley-Harp, of which the following is aspecification.

This invention relates to overhead trolleys, and one of the primaryobjects thereof is to provide means for maintaining the trolley inconstant contact with the trolley-wire and eliminate the arc common inthe use of the ordinary type of trolley.

A further object of the invention is to provide a novel means foraccomplishing the desired result, which may be attached to the ordinaryform of trolley-harp.

A further object of the invention is to provide a connection between thetrolley harp and pole, whereby a limited swing of the harp will bepermitted tocompensate for the swaying of the car owing to unevenroad-beds and in rounding curves.

Further objects and advantages of this invention will appear as thenature of the invention is better understood, it being obvious thatchanges as to form and minor details of construction may be made withoutdeparting from or. sacrificing any of the essential elements of thisinvention.

In the drawings, Figure 1 is a frontyiew of the trolley constructed inaccordance with my invention, and Fig. 2 is a side viewof the same.

In carrying out the invention the usual trolley-harp 1 maybe used,having in one end thereof a recess 2. The pole 3 is bifurcated, as at 4,and between the bifurcated arms 4 is pivoted an interposed connectingmember 5, which is seated in the recess 2 and held rigidly therein by atransverse pin 6. The lower end 7 of the connecting member issubstantially angular, so that a line drawn in the path of the arcscribed by said end in swinging would intersect the curved or concaveend 8 of the pole which is between the 3111134 and which is scribed on adifferent are. The oppositely-located shoulders 5 on the coupling member5 will also contact with the ends of the arms 43 to further insure thelimit of swing of the trolley harp. This arrangement will permit theharp to swing from side to side, so that the trolley-wheel will at alltimes track with the conductor-wire irrespec V tive of the vibration ofthe car to which the pole is attached.

It is also the purpose of this invention to provide a finder for thetrolley-wheel, and this finder consists of two arcuate spring-arms 9 and10, having attaching-terminals 11 and 12, which are inwardly bent atsubstantially right angles to the planes of the arms, so as to liesnugly against the opposite faces of the trolley-harp. The terminals arealso pro vided with alining openings, which coincide with similaropenings in the trolley-head, so that bolts 14 may be inserted throughthe said openings and riveted or otherwise fastened, so as to hold theparts in place. It will be observed that the outer edges of thespring-arms are slightly beveled or inclined, as at 15, so as tofacilitate the introduction of the conductor therebetween and intocontact with the trolley-wheel. Inasmuch as the intermediate portions ofthe arms are close together and directly on either side of thelongitudinal center of the wheel and the portions on either end divergeor curve outward, the

conductor or feed-wire will readily be guided into contact with thewheel. In practice it is contemplated-to have the intermediate portionsof the arm so close together that they will have to slightly springapart to permit the wire to contact with the wheel; but when the wheeland wire properly coact the wheel cannot easily jump the trolley.

I claim 1. Means for maintaining constant contact between a trolley anda wire which consists -of two arcuate spring-arms adjacent to each otheron the same plane, and provided with right-angularly disposed terminalsengaging opposite sides of the trolley-harp, the opposite ends of thearms being free and outwardly disposed.

2. A guard for trolleys comprisingapair of mutually-cooperating guardmembers which are bowed toward one another with their free extremitiesflared longitudinally and also" substantially tangential with respectthereto with their inner edges received in the groove of the wheel.

In testimony that I claim the foregoing as my own I have hereto atfixedmy signature in I 5 the presence of two Witnesses.

THOMAS EGAN. lVitnesses:

J. W. EELLS, W. L JoHNsoN

